Lynge-Frederiksborg Herred (Lynge-Frederiksborg Herred Hundred) was an administrative division in Frederiksborg County in the northern part of the island of Zealand, Denmark. It was created when Lynge Herred was divided into Lynge-Frederiksborg Herred and Lynge-Kronborg Herred in 1862 and disappeared with the adoption of the Administration of Justice Act (Retsplejeloven) in 1919. The market towns in Lynge-Frederiksborg Herred were Hillerød and Frederikssund.[1]
The following present-day parishes are located in the former Lynge-Frederiksborg Herred: